I have followed the included example within the gloox source code but cannot get it to work, nor can I find ANYWHERE through Google that's an example of what I am after. I desire a way to obtain the list of added XMPP contacts (roster, I believe?) upon making a connection to an XMPP server. The code I have currently been trying is below:
void GekkoFyre::TuiHangouts::handleRoster(const Roster &roster)
{
Roster::const_iterator it = roster.begin();
for ( ; it != roster.end(); ++it) {
rosterOutBuf.push_back((*it).second->name().c_str());
}
gui_userRosterList(userListWin, rosterOutBuf, 0);
}
Stepping through the code, I can see that this virtual function does not even activate. What am I doing wrong and can anyone offer a solution? Or even better, an example to follow from? Thank you in advance.
P.S.
I don't even know if this code is written correctly, since I cannot debug it if it doesn't activate!
Nevermind, silly me! I fixed the issue with the following code elsewhere:
#include <gloox/rostermanager.h>
Client *client = new Client(jid, passwd);
client->rosterManager()->registerRosterListener(this);
Apologies if I annoyed anyone.
Related
I'm tring to learn ROS topic, but I met a problem that really confused me.
Here is the origin code. It works well, I can receive the image and pass it to CamImgcb.
mSubCam = mNh.subscribe<sensor_msgs::Image>(TopicNameCamSub,10,boost::bind(&ClientHandler::CamImgCb,this,_1));
But when I change it to this code below, CamImgcb can not receive anything, the whole program is stuck to wait for the image to come.
message_filters::Subscriber<sensor_msgs::Image> rgb_sub(mNh, TopicNameCamSub, 10);
rgb_sub.registerCallback(boost::bind(&ClientHandler::CamImgCb,this,_1));
My question is that aren't those two codes means the exact same thing? Why is there a difference between them? I just can't figure it out.
Does anyone know what is the problem? Please help me and thank you so much!
I had a similar issue a while back and found the solution here.
Try changing:
rgb_sub.registerCallback(boost::bind(&ClientHandler::CamImgCb,this,_1));
To:
rgb_sub.registerCallback(&ClientHandler::CamImgCb, this);
Solved it , the solution is here!
https://answers.ros.org/question/406915/nhsubscribe-works-but-message_filterssubscriber-not/
I'm having an internship in the field of computer vision, and i am really interested to know some details about the implementation of the Active Appearence Models aam-opencv that exists in the Google Code site.
In fact, i downloaded aam-opencv.tar.gz then built it with cmake and i solved some syntax problems but the only error that i am still having when i try to generate the solution is the following :
This function should return something:
aamImage* delaunay:: warpImageToMeanShape(aamImage*input)
{
}
I wonder if there is something missing in that function, or is it a compiler problem.
Please give me an answer or just guide me to complete the missing part of that function.
I would really appreciate if anyone kindly help me.
Thank you.
I suppose that is not used in code function, so it is not important what it return. Some C++ compilers allow to write such code and give only warning, another treat as errors:
ReturnType f()
{
}
looks like you use not the same compiler as author of source code. So just add something like:
aamImage* delaunay:: warpImageToMeanShape(aamImage*input)
{
return NULL;
}
So I'm trying to make use of a GtkSourceView in C++ using GtkSourceViewmm, whose documentation and level of support give me the impression that it hasn't been very carefully looked at in a long time. But I'm always an optimist :)
I'm trying to add a SourceView using some code similar to the following:
Glib::RefPtr<gtksourceview::SourceLanguageManager> source_language_manager = gtksourceview::SourceLanguageManager::create();
Glib::RefPtr<gtksourceview::SourceLanguage> source_language = Glib::wrap(gtk_source_language_manager_guess_language(source_language_manager->gobj(), file, NULL));
Glib::RefPtr<gtksourceview::SourceBuffer> source_buffer = gtksourceview::SourceBuffer::create(source_language);
gtksourceview::SourceView* = m_source_view = new gtksourceview::SourceView(source_buffer);
m_vbox.pack_start(*m_source_view);
Unfortunately, it spits out the warning
(algoviz:4992): glibmm-WARNING **:
Failed to wrap object of type
'GtkSourceLanguage'. Hint: this error
is commonly caused by failing to call
a library init() function.
and when I look at it in a debugger, indeed the second line above (the one with the Glib::wrap()) is returning NULL. I have no idea why this is, but I tried to heed the warning by adding Glib::init() to the begining of the program, but that didn't seem to help at all either.
I've tried Google'ing around, but have been unsuccessful. Does anyone know what Glib wants me to init in order to be able to make that wrap call? Or, even better, does anyone know of any working sample code that uses GtkSourceViewmm (not just regular GtkSourceView)? I haven't been able to find any actual sample code, not even on Google Code Search.
Thanks!
It turns out, perhaps not surprisingly, that what I needed to init was:
gtksourceview::init();
After this, I ran into another problem with one of the parameter to gtksourceview::SourceLanguageManager, but this was caused by a genuine bug which I subsequently reported and was promptly fixed. So everything's working great now!
I use gtkmm. Typically you have to initialize things with something like :
_GTKMain = new Gtk::Main(0, 0, false);
Of course do not forget :
delete _GTKMain;
Check here for details :
http://library.gnome.org/devel/gtkmm/2.19/classGtk_1_1Main.html
(Sorry but the link option does not work ...)
This is a weird question in that I'm not sure where to start looking.
First of all, I haven't done any C++ programming for the last 10 years so it could be me thats forgotten a few things. Secondly, the IDE I'm using is Eclipse based (which I've never used) and customized for Samsung bada based mobile development (it kicks off an emulator for debugging purposes)
I'm posting my code samples as images because the StackOverflow WYSIWYG editor seems to have a problem parsing C++.
[EDIT] Due to complaints I've edited my question to remove the images. Hope that helps :)
I have the following header file...
#include <FApp.h>
#include <FBase.h>
#include <FGraphics.h>
#include <FSystem.h>
#include <FMedia.h>
using namespace Osp::Media;
using namespace Osp::Graphics;
class NineAcross :
public Osp::App::Application,
public Osp::System::IScreenEventListener
{
public:
static Osp::App::Application* CreateInstance(void);
public:
NineAcross();
~NineAcross();
public:
bool OnAppInitializing(Osp::App::AppRegistry& appRegistry);
private:
Image *_problematicDecoder;
};
...and the following cpp file...
#include "NineAcross.h"
using namespace Osp::App;
using namespace Osp::Base;
using namespace Osp::System;
using namespace Osp::Graphics;
using namespace Osp::Media;
NineAcross::NineAcross()
{
}
NineAcross::~NineAcross()
{
}
Application* NineAcross::CreateInstance(void)
{
// Create the instance through the constructor.
return new NineAcross();
}
bool NineAcross::OnAppInitializing(AppRegistry& appRegistry)
{
Image *workingDecoder;
workingDecoder->Construct();
_problematicDecoder->Construct();
return true;
}
Now, in my cpp file, if I comment out the line that reads _problematicDecoder->Construct();...I'm able to set a breakpoint and happily step over the call to Constuct() on workingDecoder. However, as soon as I uncomment the line that reads _problematicDecoder->Construct();... I end up with the IDE telling me...
"No source available for "Osp::Media::Image::Construct()"
In other words, why can I NOT debug this code when I reference Image *image from a header file?
Any ideas?
Thanks :-)
This usually means you're stepping through some code which you do not posses its source.
I assume here that Osp::Media::Image is a class supplied by Samsung or similar for which you do not have the cpp file. So this means the debugger can't show you the current code line while you're at a function of Osp::Media::Image.
Alternatively, there's a good chance you do have all of the source code for this class, but Eclipse doesn't know where it is. In this case you can add the correct directories under the Debug Configurations window.
Ok, problem solved.
The idea is to first new up an instance of Image like so...
_decoder = new Osp::Media::Image();
And then do _decoder->Construct().
Funny enough, this seems blatantly obvious to me now coming from the C# world, though why the code I posted for workingDecoder works is still somewhat mysterious to me. The fact the sample projects pre-loaded with the bada IDE don't seem to make a call to new() leads me to believe that perhaps those samples are outdated our out of synch.
Either that or I really AM wildly out of the C++ loop.
Anyway thanks so much for the effort guys.
Appreciated :)
I know there are only a few CAA Programmers in the world but I try it anyway...
I can't get keyboard events to work. I found this code which looks reasonable but the Notification doesn't fire.
AddAnalyseNotificationCB(CATFrmLayout::GetCurrentLayout()->GetCurrentWindow()->GetViewer(),
CATKeyboardEvent::ClassName(),
(CATCommandMethod)&PROTrvTreeView::OnKeyboardEvent, NULL);
void PROTrvTreeView::OnKeyboardEvent(CATCommand * ipCmd, CATNotification * ipEvt, CATCommandClientData iobjData) {
cout<< "KeyboardEvent" <<endl;
}
Anyone any idea?
There is a much denser group of developers for CAA at:
http://www.3ds.com/alliances/c-java-developers/forum/
The same question came up, with several people mentioning that this API was unauthorized, and therefore you can't rely on it, even if it works.
The other samples there are essentially the same code as yours, but the only one that purports to work doesn't use CATKeyboardEvent::ClassName, but instead uses CATKeybdEvent. Might be worth a try.